As GJ 436b, an exoplanet, crossed the face of its star, the Hubble Space Telescope detected a decrease in ultraviolet light as a huge cloud of hydrogen departed the doomed planet's atmosphere.
As GJ 436b, an exoplanet, crossed the face of its star, the Hubble Space Telescope detected a decrease in ultraviolet light as a huge cloud of hydrogen departed the doomed planet's atmosphere.